Since nobody in Gaza could know about the arrival it would have to be the IDF doing the rockets or the visit and the rocket landing in the middle of nowhere have nothing in common.

Quoting: MHz

There have been rockets all day long, hardly 10 minutes between each one. Ban Ki Moon landed in Tel Aviv, not in Jerusalem. I'm not suggesting they are aiming, I'm suggesting that diplomats coming to attempt to quiet things down now find themselves on the front lines, unlike any other conflict Israel has had in the last 30 years.